Telephone-switch.



of the line bars 10 is controlled by moans ot an electroniagnet. 30,the. energization of whieh moves an armature 31 inwardly. The armatureill is iu engagement with a iiv otal extension ot a line bar Il), and asit is moved inwardly, moves the assoeiated line har It)long-itluliually` and a roller 32 mounted on the side oli said bar atthe opposite end thereof engages a ram projection 33 mounted on theinner t'aee ol the eml plate opposite to that earrying the magnetrontrolling; a particular bar. The engagement of this roller 25:. withits eorrespomlimgr cam surtaee 38 causes au angular displaeement of thebar 10 against the tension of a spring lll. When one ol' the bars 1() isthus displaeed, a Set of the eontaets 12, 13 and 14 will be brought intoengagement with a eorrespondingr set. of eontaets T. 8 and tt on thedisplaced trunk bar. 'l`he trunk bar with its terminals thus engagedwill he released t'rom its displared position and rot-ate to the rightto earmv its uneugaged terminals out of msition to be engaged byeontaets of anot )er line bar` whieh may be snlisepienily operated whilea eireuit is eonnerted through terminals of that. partieular bar.

The eyele ot' operation for the deviee of this invention is practicallythe same as that described in the lateut No. 1,131,734 and, withouttraeing in detail the eireuit ronditions` is brietiy as follows. At alltimes one, ot the trunk bars .3 will be. in a displaced position. owupon the initiation olI a eall one. of the. line. bars 10 will bedisplaeed longitudinally and angularly by the magnet $5() to bring aset. ot' eoutaels .thereon into engagement with a set ol' eo'ntaets onthe displaeed trunk har 5. 'l'he longitudinal movement oll the bar ll issullieient to earry the uneugaged terminals thereon beyond a positionwhere they ran be engaged by the terminals of subserpieutly displaeedtrunk bars while the particular line bar is in use. 'lheengagementot`the terminals l2, ttt and 14 of.the lim` bar l't with the termimils 7. Rand t) of the trunk bar operates to edel-t. a eomplet ion ol' theeireuit lor the trip mag net. 2S individual to the truuk bar` wherebythe bar is released and returned to normal position where'itsI unengagedterminalsI are outl ol` a position to he engaged b termiY mils ol`others ol the lilubars 5 whieh may bo lsuhsmpleutly o|araled. 'lheoperation ot' the tr'ip magnet .S eompletes a eil-enit I'or a relay ttlwhieh eompletes a eireuit tluouglrthe setl magnet 23. to eause thelongitlu'liual moveluent of the sha ft 2.0 to setl another trunk bar5.1,; As the shaftflt returns to normal positionl a eiljeuitis eompletedfor a 'relay il whieli eontrols an interrupter meehanism IJ in eirruitwith the. magnet. 'il-t. This cansesfimlgnet. il to` operate and rotate,the shaft. 21') to brin n pin or projection 21 thereon into position toengage the lever 22 of an idle trunk bar 5 upon the next. longitudinalmovement of the set shaft Q0.

The terminal eontaets T, 8 and 9 n )on one side. of. the trunk bars 5will be dis i :iced in opposite direetions upon the disp acement ot' thetrunk bar, and the line vbars upon opposite sides ofthe trunk bars willbe moved m opposite di|eetious--tl1ose upon theI front, as shown in diedrawimg` being moved tothe. left, while those upon the haelt are movedto the right. Magnets for moving those shown in tlie bark will bemounted upon the e'nd plate 2 in the same annuler as those upon the endplate l.

By reason of the eonstruetion whereby the trunk bars are provided withterminals on eaeh side, the, same number of trunk terminuls ean beprovided on a bar half the lengt-h formerly used` and by mounting theline bars upon both sides of these trunk bars and lorating eontrollingmeeha-nism therefor upon eaeh end ot' the apparatus. a structure of the`same line and trunk eapaeity can be obtained with a nmrh smallelnd morecompact strueture than eould be obtained with that diselosed in thelateut-No. 1,131,734.

What is claimed is:

1. ln a switehing mechanism, a. movable switching member. sets ofeontaet terminals located switehimgr member. and a plurality of mow ableswitch i ng n`i`embers adapted to eooperate with the several sets ofterminals on sain lirst mentioned switching member. Y

L?. vln a. awitehings;'meehanism` al movable .wtehing member.: pluralityof sets of ter- .uials extending in opposite direetions from mid member`aud a plurality of movable terminal earrying: members located onoppo`site sides of said switehiur member and adapted to eoperatewith the.terminaison said switehing member.

tl.'- ln a. switehing;r meehanism, a. switching member, terminalsextendinigin o )posite diret-t ions therefrom, means for displacing saidswitrliimglr member singularly, o prepare the termiualat'or ronneetion`mutable terminalearryiag: members loeated upon opposite sides ot' saidswit-ehim.'` member. andmeans vl'or eoutrolling the engagement of theterminals otl the terminal earrying member on either. side of said4switehilng1 member with the rorres|wading.;r ytieiniimils on saidswitching member.

l. l'n a. switehing mechanism, a plurality of switehing: members` aplurality of sets of terminals extending in opposite directionstherefrom` means for seleetively displacing said switehini: members toplaee the terminalss thereon in reeeptive eondition, a plurality ol'movable bars loeat'ed upon opposite sides of said sn'itehiingr membersand extending at right angles thereto, a plurality of' upon a pluralityofssidesfo'f said fn emipernln with n mrrespomling level of lerminnls unHind :iwllchmg members, :1nd

merlin` for morilm the lmrs upon opposltn sifles ol' snigl swil'ehing;lmemllernl in opponile lireeliolm to eoiipernlu with (he rorresprnnlA ingwis nl' lelminnls on :inici sn'itrhingnrem bers.

5. ln n \\'ilchinp; mnohnnism, :i supporting frame including cnilmenihers nml :i lop :unl liotlom member7 switching memhers pivoltnlli'supporlrdbetween Hniil lop :und hotloin members, n plurnlii)7 nl' eiclnol' termimil extending* in opposite direi-lions from snhl swilehingmemherta, n plurality of switch linrs pirolnlly supported in sniil endmemliern4 npnn opposilc Hillen ol snill switching nunihers nmleleclronnlgnels mounted upun snill nml members for movingr :mill swilohinn-s inlo eoipernlire relation with rho lerminnls On snill :iinnrliingrmemhern, the. nnlgnel's for unnl rolling ille morennrnl' of lhe hars onone, :eide of theswitcliing memhers being mounted 11p/nn onev vnd member:unl lhosn for cont-rolling the movement of thu hin-s upon .theoppositey 'side of Suid `swnrhmg membnrhl helng mounted upon theopposite end member.

ln n switching mechanism, n, switching member hnvmg terminals projectlngfrom A opposite sides lthereof, switching bars havin;r terminals,`arranged to coperatie with the terminnln` on bot-h sides of saidswitching member, mcnns for rotating Suid switching member to place. theterminals onhoth sides` thereof in position for engagement by theterminals on snid switching bars, und menus for rotating n switchingbau' to enggtge ils terlninnls with the, )ositioned terminaison' snillswitching mem ier. l

ln witness whereof, I hereunto subscribe my nznne t'hi's 18H1 day ofMay, A. D*S 191.6.

JOHN NlllYlRR-Y REYNOLDS,

